221120331200 has 42 divisors (see below), whose sum is σ = 544094218896. Its totient is φ = 88448131840.

The previous prime is 221120331191. The next prime is 221120331259. The reversal of 221120331200 is 2133021122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69098504 + ... + 69101703.

Almost surely, 2^221120331200 is an apocalyptic number.

221120331200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221120331200 is an abundant number, since it is smaller than the sum of its proper divisors (322973887696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221120331200 is a wasteful number, since it uses less digits than its factorization.

221120331200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138200229 (or 138200214 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 221120331200 its reverse (2133021122), we get a palindrome (223253352322).

The spelling of 221120331200 in words is "two hundred twenty-one billion, one hundred twenty million, three hundred thirty-one thousand, two hundred".